Device for removing rollers, hands, or other parts of watches.



Patented Dec. 3, l9 0l.

w. W. J0$C.ELYN. I DEVICE FOR REMOVING ROLLERS, HANDS, OR OTHER PARTS OFWATCHES.

(Application flied Mar. 14, 1901.)

(No Moder.)

WITNESSES:

" rrED STATES WALTER \V. JOSCELYN, OF THOMASTON, CONNECTICUT.

DEVICE FOR REMOVING ROLLERS, HANDS, OR OTHER PARTS OF WATCHES.

SPECIFICATION formingpart of Letters Patent N 0. 688,095, dated December3, 1901.

Application filed March 14, 1901. Serial No. 51,058. (No model.)

To to whom it may concern.-

Be it known that I, WALTER W. JosoELYN, a citizen of the United States,residing at Thomaston, in the county of Litchfield and State ofConnecticut, have invented certain new and useful Improvements inDevices for Removing the Rollers, Hands, or other Parts of Watches, ofwhich the following is a specification.

This invention relates to devices for removing the rollers, hands, andother parts of a watch; and it has for its object to provide an improveddevice of this class whereby the hands, rollers, pinions,wheels, andother similar parts of watches maybe con veniently and rapidlyremovedfrom and replaced in operative position and which shall perform theremoving and replacing operations without injury to the parts involved.

In the drawings, Figure 1 is a detail perspective view of my improvedtool, illustrating the device in the operation of removing the hands ofa watch. Fig. 2 is a detail longitudinal sectional view of the improvedtool. Fig. 3 is a detail transverse sectional View taken upon the lineso 00, Fig. 2, and looking in the direction of the arrow. Fig. 4 is adetail front end View of the improved tool. Fig. 5 is a detail sectionalView of the outer end portion of the secondary plunger.

Corresponding parts in all the figures are denoted by the same referencecharacters.

Referring to the drawings, 1 designates my improved tool,which isprovided with a shank or body portion 2 and a bulbous handle portion 3.At the front end of the shank 2 is arranged a fixed jaw 4, and a movablejaw5 opcrates in connection with the same to loosen and detach the part.The movable jaw 5 is operated by a lever or similar element 6,which isarranged with respect to the handle portion 3. The movable jaw5and thefixed jaw 4 are normally maintained in relatively-separated position bytensional means 7.

In the preferred form of construction the shank 2 of the tool istubularin form, asillustrated, and the movable jaw 5 consists of ahollow plunger 8, which operates within said tubular shank. The shank 2is cut away transversely in an approximately diametrical plane at itsforward end, as at 9, to form the fixed jaw 4, which thus consists oftwo spaced prongs or projections 10. In thus cutting away the shank 2the material at the forward end of the same is only slightly cut away toform the prongs or projections 10. The forward end of the plunger 8 thusoperates through the cut-away portion 9 in the bisected bore of theshank 2, and the part to be removed may thus be readilyinserted betweenthe prongs 10 and the forward end of the plunger. The forward end of theplunger 8 is reduced to form a tubular projection 11, which fits betweenthe prongs or projections 10, and in forming the tubular shank 2 thediameter of the bore of the same is diminished at the extreme forwardend between the prongs 10, whereby the major portion of the plungerSisincapable of the passage between the prongs or projections 10, whichoperate recL-ly rearwardly of the prongs or projections 10, whereby thepart to be removed may be firmly seated in the recess thus formed.

It may be preferable to form the forward end of the shank 2, embodyingthe transversely-cutaway portion 9 and the prongs or projections 10,from a separate metal blank and to connect the same with the majorportion of the shank by threads, as at 12, which will permit thesubstitution of new end portions for the shank when breakage or wear hasrendered the parts unfit for use.

The tcnsional means 7 may consist of a coiled spring 13, which isimposed upon the plunger 8 within the tubular shank 2 and bears at oneend against the shoulder 14, 0

which is formed by transversely cutting away the shank 2, and at theother end against a lug 15, which is formed upon the rearward end of theplunger 8. The bore 16 of the tubular shank 2 rearwardly of the shoulder12 is of relatively-increased diameter to accommodate the coiled spring13 and the lug 15.

The plunger 8 is hollow, as stated, and a secondary plunger 17 isslidably mounted within the same and projects at its forward I00 end, asat 18, through the tubular projection 11 of the plunger 8. The secondaryplunger 17 is formed at its forward end 18 of proper diameter to permitits slight projection beyond the forward end of the tubular projection11, and the secondary plunger is normally maintained in such position bya coiled spring 17, which bears upon the rearward end of the secondaryplunger 17 and upon the inner wall at the rearward end of the shank 2.The forward end 18 of the secondary plunger 17 is provided with acentral bore 19 of relatively slight depth, which serves as a seat inremoving the rollers.

The lever 6 is pivoted to the shank 2, adjacent the inner end, as at 20,which end is provided with an angular finger 21, which passes through aslot 22 in the wall of the shank 2 and through a slot 23 in the wall ofthe tubular plunger 8, rearwardly of the secondary plunger 17. The outerend of the lever 6 is normally maintained at an angle with the shank 2by the spring 13, and when the handle portion 3 is grasped the fingersmay be pressed upon the lever 6 to advance the plungers 8 and 17 againstthe tension of the spring 13 and to cause the jaw 5 to approach the jaw4. The finger 18 upon the lever 6 initially advances the plungers 8 and17 by direct engagement with the rearward end of the secondary plunger17. The secondary plunger 17 is thus locked against movement withrelation to the plunger 8. At a predetermined point in the movement ofthe parts the finger 21 becomes disengaged from the plunger 17 andengages directly with the plunger 8 for further advancing of the latter.The secondary plunger 17 is now free to move with relation to theplunger 8 and against the tension of the spring 17*.

The operation and advantages of my improved tool will be readilyunderstood by those skilled in the art to which it appertains. In usingthe tool for removing the hands the prongs or projections 10 are placedbeneath both hands at their inner ends and the lever 6 is depressed toforce the end 18 of the secondary plunger 17 into engagement with theend of the pinion-cannon. If it is desired to only remove theminute-hand, the lever is pressed slightly, and the secondary plungerbears upon the end of the cannon-pinion under tension of the spring 17and slips the minute-hand oif from the end of the latter and onto thetubular projection 11,from which it is removed by releasing the pressureupon the lever 6. If it is desired to also remove the hour-hand, thepressure upon the lever 6 the cannon-pinion in removing the minutehandand upon the hour-wheel pipe in removing the hou r-hand. For all usagesof the tool in which the jaw 5 operates between the prongs 10 and theshoulder 12 the secondary plunger 17 is maintained in constant relationwith the plunger 8, being prevented from movement by direct actuation ofthe finger 21 of the lever 6. The bore 19 in the forward end of thesecondary plunger 17 serves as a seat to receive the jewel-pins of theparts being removed. Any size of roller may be removed by my improvedtool, and there is no danger of breaking the jewel-pin or balancestaff.

The entire tool is simple and inexpensive in construction, convenient inoperation, and adapted to a wide variety of usages, such as thosedescribed. e

I do not desire to be understood as limiting myself to the details ofconstruction and arrangement as herein described and illustrated, as itis manifest that variations and modifications may be made in thefeatures of construction and arrangement in the adaptation of the deviceto various conditions of use without departing from the spirit and scopeof my invention and improvements. I thereforereserve the right to allsuch variation and modification as properly fall within the spirit andscope of my invention and the terms of the following claims.

Having thus described my invention, I claim and desire to secure byLetters Patent 1. An improved device of the class described, comprisinga fixed jaw, relatively movable plungers one of which plungers isprovided with a separate part which is movable relative to the plungerwhich carries the same as well as to the jaw, means for relativelymoving said plungers, and means for normally maintaining said jaw andplungers in relatively separated position; said jaw being bifurcated andone of said plungers being formed to pass between the bifurcations ofthe aw.

2. An improved device of the class described, comprising a fixed jaw,relatively movable plungers one of which plungers is provided with aseparate part which is movable relative to the plunger which carries thesame and to the jaw, and means for relatively moving said plungers andlocking said separate relatively movable part against in dependentmovement during part of the move ment of said plungers.

3. An improved device of the class described, comprising a tubular shankprovided with a handle and transversely cut away at its forward end toprovide two spaced prongs or projections, a tubular plunger slidablymounted in said tubular shank portion and provided at its forward endwith a tubular projection adapted to pass between said prongs orprojections, tensional means operating to normally maintain said plungerin retraeted position, a secondary plunger slidably mounted in saidfirst-named plunger, tensional means for normally projecting the forwardend of said secondary plunger through said tubular projection of saidfirst-named plunger, and a lever pivoted to said shank portion andprovided with a finger which projects through a slot in the side of saidshank portion and through a slot in the side of said first-named plungerin position to engage said secondary plunger and to actuate the same andthe first named plunger in combined movement.

4. An improved device of the class described, comprising a fixed jaw, aplunger which is provided with a separate relatively movablespring-actuated part, means for normally maintaining said jaw andplunger in relatively separated position, and means for relativelymoving said jaw and plunger and for holding said separate relativelymovable part of said movable plunger against independent movement duringa part of the movement of said movable plunger.

5. An improved device of the class described, comprising a tubular shankprovided with a handle and transversely cut away at its forward end toprovide two spaced prongs or projections, a tubular plunger slidablymounted in said tubular shank and provided at its forward end with atubular projection adapted to pass between said prongs or projections,tensional means operating to normally .maint-ain said plunger inretracted relation,

